var arr1 = ['山东省','江苏省','广东省'];
//var arr2 = ['济南','青岛','烟台','南京','苏州','无锡','广州','深圳','珠海'];
var arr2 = [
	['济南','青岛','烟台','威海'],
	['南京','苏州','无锡'],
	['广州','深圳','珠海','惠州']
];
//console.log(arr2[0])
//console.log(arr2[][k].length)
for (var i = 0;i<arr2.length ;i++ ){
	for(var j=0 ;j<arr2[i].length;j++){
		console.log(arr2[i][j])
}
}



